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A curve of radius 70 m is banked so that a 1000 kg car traveling at...

A curve of radius 70 m is banked so that a 1000 kg car traveling at 60 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. The acceleration of gravity is 9.81 m/s 2 .

a) Find the minimum speed at which a car can travel around this curve without skidding if the coefficient of static friction between the road and the tires is 0.2

b) Find the maximum speed under the same conditions.

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